DiskSpaceDetail.java

/*
 * Created on 13-3-29
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 * 
 * Copyright @2013 the original author or authors.
 */
package ch18io.file;

/**
 * Description of this file.
 *
 * @author XiongNeng
 * @version 1.0
 * @since 13-3-29
 */

import java.io.File;

/**
 * Unix filesystem reserves some percent of space for root-user.
 * getFreeSpace() returns total free space available
 * getUsableSpace() returns amount of free space available to current user.
 */
public class DiskSpaceDetail {
    public static void main(String[] args) {
        File file = new File("c:");
        long totalSpace = file.getTotalSpace(); //total disk space in bytes.
        long usableSpace = file.getUsableSpace(); ///unallocated / free disk space in bytes.
        long freeSpace = file.getFreeSpace(); //unallocated / free disk space in bytes.

        System.out.println(" === Partition Detail ===");

        System.out.println(" === bytes ===");
        System.out.println("Total size : " + totalSpace + " bytes");
        System.out.println("Space free : " + usableSpace + " bytes");
        System.out.println("Space free : " + freeSpace + " bytes");

        System.out.println(" === mega bytes ===");
        System.out.println("Total size : " + totalSpace / 1024 / 1024 + " mb");
        System.out.println("Space free : " + usableSpace / 1024 / 1024 + " mb");
        System.out.println("Space free : " + freeSpace / 1024 / 1024 + " mb");
    }
}